diff options
Diffstat (limited to 'sys/kern/uipc_usrreq.c')
| -rw-r--r-- | sys/kern/uipc_usrreq.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/sys/kern/uipc_usrreq.c b/sys/kern/uipc_usrreq.c index 5ce4433..9acb596 100644 --- a/sys/kern/uipc_usrreq.c +++ b/sys/kern/uipc_usrreq.c @@ -59,6 +59,7 @@ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); +#include "opt_ddb.h" #include "opt_mac.h" #include <sys/param.h> @@ -91,6 +92,10 @@ __FBSDID("$FreeBSD$"); #include <sys/unpcb.h> #include <sys/vnode.h> +#ifdef DDB +#include <ddb/ddb.h> +#endif + #include <security/mac/mac_framework.h> #include <vm/uma.h> @@ -2162,3 +2167,119 @@ unp_discard(struct file *fp) UNP_GLOBAL_WUNLOCK(); (void) closef(fp, (struct thread *)NULL); } + +#ifdef DDB +static void +db_print_indent(int indent) +{ + int i; + + for (i = 0; i < indent; i++) + db_printf(" "); +} + +static void +db_print_unpflags(int unp_flags) +{ + int comma; + + comma = 0; + if (unp_flags & UNP_HAVEPC) { + db_printf("%sUNP_HAVEPC", comma ? ", " : ""); + comma = 1; + } + if (unp_flags & UNP_HAVEPCCACHED) { + db_printf("%sUNP_HAVEPCCACHED", comma ? ", " : ""); + comma = 1; + } + if (unp_flags & UNP_WANTCRED) { + db_printf("%sUNP_WANTCRED", comma ? ", " : ""); + comma = 1; + } + if (unp_flags & UNP_CONNWAIT) { + db_printf("%sUNP_CONNWAIT", comma ? ", " : ""); + comma = 1; + } + if (unp_flags & UNP_CONNECTING) { + db_printf("%sUNP_CONNECTING", comma ? ", " : ""); + comma = 1; + } + if (unp_flags & UNP_BINDING) { + db_printf("%sUNP_BINDING", comma ? ", " : ""); + comma = 1; + } +} + +static void +db_print_xucred(int indent, struct xucred *xu) +{ + int comma, i; + + db_print_indent(indent); + db_printf("cr_version: %u cr_uid: %u cr_ngroups: %d\n", + xu->cr_version, xu->cr_uid, xu->cr_ngroups); + db_print_indent(indent); + db_printf("cr_groups: "); + comma = 0; + for (i = 0; i < xu->cr_ngroups; i++) { + db_printf("%s%u", comma ? ", " : "", xu->cr_groups[i]); + comma = 1; + } + db_printf("\n"); +} + +static void +db_print_unprefs(int indent, struct unp_head *uh) +{ + struct unpcb *unp; + int counter; + + counter = 0; + LIST_FOREACH(unp, uh, unp_reflink) { + if (counter % 4 == 0) + db_print_indent(indent); + db_printf("%p ", unp); + if (counter % 4 == 3) + db_printf("\n"); + counter++; + } + if (counter != 0 && counter % 4 != 0) + db_printf("\n"); +} + +DB_SHOW_COMMAND(unpcb, db_show_unpcb) +{ + struct unpcb *unp; + + if (!have_addr) { + db_printf("usage: show unpcb <addr>\n"); + return; + } + unp = (struct unpcb *)addr; + + db_printf("unp_socket: %p unp_vnode: %p\n", unp->unp_socket, + unp->unp_vnode); + + db_printf("unp_ino: %d unp_conn: %p\n", unp->unp_ino, + unp->unp_conn); + + db_printf("unp_refs:\n"); + db_print_unprefs(2, &unp->unp_refs); + + /* XXXRW: Would be nice to print the full address, if any. */ + db_printf("unp_addr: %p\n", unp->unp_addr); + + db_printf("unp_cc: %d unp_mbcnt: %d unp_gencnt: %llu\n", + unp->unp_cc, unp->unp_mbcnt, + (unsigned long long)unp->unp_gencnt); + + db_printf("unp_flags: %x (", unp->unp_flags); + db_print_unpflags(unp->unp_flags); + db_printf(")\n"); + + db_printf("unp_peercred:\n"); + db_print_xucred(2, &unp->unp_peercred); + + db_printf("unp_refcount: %u\n", unp->unp_refcount); +} +#endif |
